Leases - Balance Sheet Location (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Operating leases
Operating lease right of use assets	$ 16,696	$ 11,280
Operating lease liability, current	2,615	2,268
Operating lease liability, noncurrent	14,081	9,012
Total operating lease liabilities	16,696	11,280
Finance leases
Property, plant, and equipment	1,086	3,426
Accumulated amortization	(834)	(2,892)
Property, plant, and equipment - net	252	534
Finance lease liability, current	117	377
Finance lease liability, noncurrent	135	157
Total finance lease liabilities	$ 252	$ 534
Operating lease, liability, current, statement of financial position [extensible list]	us-gaap:AccruedLiabilitiesCurrent
Finance lease, right-of-use asset, statement of financial position [extensible list]	us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization
Finance lease, liability, current, statement of financial position [extensible list]	us-gaap:LongTermDebtAndCapitalLeaseObligationsCurrent
Finance lease, liability, noncurrent, statement of financial position [extensible list]	us-gaap:LongTermDebtAndCapitalLeaseObligations